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| author | mav <mav@FreeBSD.org> | 2014-09-06 15:26:38 +0000 |
|---|---|---|
| committer | mav <mav@FreeBSD.org> | 2014-09-06 15:26:38 +0000 |
| commit | c5202a10e46c0c18090f9970d9eac617287250fc (patch) | |
| tree | 28304d430bded1166a72c6fe1478b041d5027a78 /sys/kern/sched_ule.c | |
| parent | 273fd132165d21fb00358721a0061170eb38177a (diff) | |
| download | FreeBSD-src-c5202a10e46c0c18090f9970d9eac617287250fc.zip FreeBSD-src-c5202a10e46c0c18090f9970d9eac617287250fc.tar.gz | |
MFC r270423:
Restore pre-r239157 handling of sched_yield(), when thread time slice
was aborted, allowing other threads to run. Without this change thread
is just rescheduled again, that was illustrated by provided test tool.
PR: 192926
Submitted by: eric@vangyzen.net
Approved by: re (marius)
Diffstat (limited to 'sys/kern/sched_ule.c')
| -rw-r--r-- | sys/kern/sched_ule.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/kern/sched_ule.c b/sys/kern/sched_ule.c index f4df381..a655440 100644 --- a/sys/kern/sched_ule.c +++ b/sys/kern/sched_ule.c @@ -1862,7 +1862,8 @@ sched_switch(struct thread *td, struct thread *newtd, int flags) ts->ts_rltick = ticks; td->td_lastcpu = td->td_oncpu; td->td_oncpu = NOCPU; - preempted = !(td->td_flags & TDF_SLICEEND); + preempted = !((td->td_flags & TDF_SLICEEND) || + (flags & SWT_RELINQUISH)); td->td_flags &= ~(TDF_NEEDRESCHED | TDF_SLICEEND); td->td_owepreempt = 0; if (!TD_IS_IDLETHREAD(td)) |
